I hate people who stand in line at the grocery store and only start to get out their method of payment AFTER they've been told the total. Then they go for their purse(women usually do this) and rummage for money or their card. They've been standing there for ten minutes and only NOW believe they are going to have to pay for it. geeeze! Have you payment ready when the cashier is done, not AFTER, it really speeds things up.